Joseph Da Silva has not made contact with friends of family since being reported a year ago.
Police and Mr Da Silva's family are again asking the public for assistance to help locate the 34-year-old Perth man.
Joseph last spoke to his mother on Thursday 27 April 2017 over the phone, and was last seen on CCTV leaving his Wellington Street apartment in Perth around 2.30pm on 30 April 2017.
It is believed that in the two days prior to his disappearance, Joseph also frequented the City Beach area, and attended restaurants in that area for dinner on 28 April and breakfast on 29 April.
Missing Person Unit Detective Senior Constable Will Stokeley said that Joseph’s disappearance is out of character and his family have not lost hope that he may come home.
“Even though it has been over a year since he was last seen, we hope that someone may come forward with valuable information on Joseph’s whereabouts,” he said.
“Joseph left his wallet, keys, passport, bank cards and phone in his apartment, and his 2008 white Holden Commodore was recovered by police near Harold Boas Gardens in Delhi Street in West Perth.
“Unfortunately, there has been little further information or further sightings of Joseph since the time of his disappearance.”
Police have created posters which will be placed in locations in which Joseph liked to attend.
“We’re hoping the posters will jog some memories and encourage anyone who looks at them and thinks they might know something or hasn’t yet come forward, to do so,” Detective Senior Constable Stokeley said.
Joseph is described as being fair skinned, approximately 180cm tall, with dark hair, shaved, of a medium build with black hair and brown eyes.
He was last seen to be wearing a blue long sleeved top, blue shorts and thongs.
Anyone who can assist in this investigation is asked to call Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au